Exam 4 content

Question 1

A biomolicule that is soluble in fats but not water

Answer 1

Lipids

Question 2

This class of lipid is made up of a long chain of carbons followed by a HOC=O at the end

Is either saturated or unsaturated

Answer 2

Fatty acid

Question 3

Saturated fatty acid

Answer 3

liquid at room temperature

single bonds

Question 4

unsaturated fatty acid

Answer 4

solid at room temperature

cis double bonds

Question 5

This class of lipid is three fatty acid chains attached to glycerol

Answer 5

triglycerides

Question 6

This class of lipid is made up of two fatty acid chains and a phosphate group bound to glycerol

mos abundant in cell membranes

Answer 6

Phospholipid

Question 7

This class of lipid is made up of a fatty acid chain attached to an amino group

Answer 7

sphingolipid

Question 8

This class of lipids main sturctur is three benzene rings bound to a cyclopentane

subunits A,B,C,&D

Answer 8

sterol

Question 9

Cholosterol is not found in what kinds of living organisims?

Answer 9

Plants

Question 10

List the materials that colesterol is the staring materials for

Answer 10

• sex hormones
• bile salts
• vitamin D

Question 11

Most fatty acids and cholesterol are synthesized using _____________________________________________

Answer 11

ActylCoA

Question 12

Lipioproteins can be either ____ or ____

Answer 12

high density

low density

Question 13

LDL are considered bad cholesterol. Why?

Answer 13

LDLs do not carry cholesterol as far through out the body, causing them to float around in the bloodstream for a longer period of time compared to HDL